1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: wx/msw/dcclient.h 3 // Purpose: wxClientDC class 4 // Author: Julian Smart 5 // Modified by: 6 // Created: 01/02/97 7 // Copyright: (c) Julian Smart 8 // Licence: wxWindows licence 9 ///////////////////////////////////////////////////////////////////////////// 10 11 #ifndef _WX_DCCLIENT_H_ 12 #define _WX_DCCLIENT_H_ 13 14 // ---------------------------------------------------------------------------- 15 // headers 16 // ---------------------------------------------------------------------------- 17 18 #include "wx/dc.h" 19 #include "wx/msw/dc.h" 20 #include "wx/dcclient.h" 21 22 class wxPaintDCInfo; 23 24 // ---------------------------------------------------------------------------- 25 // DC classes 26 // ---------------------------------------------------------------------------- 27 28 class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxMSWDCImpl 29 { 30 public: 31 // default ctor 32 wxWindowDCImpl( wxDC *owner ); 33 34 // Create a DC corresponding to the whole window 35 wxWindowDCImpl( wxDC *owner, wxWindow *win ); 36 37 virtual void DoGetSize(int *width, int *height) const; 38 39 protected: 40 // initialize the newly created DC 41 void InitDC(); 42 43 DECLARE_CLASS(wxWindowDCImpl) 44 wxDECLARE_NO_COPY_CLASS(wxWindowDCImpl); 45 }; 46 47 class WXDLLIMPEXP_CORE wxClientDCImpl : public wxWindowDCImpl 48 { 49 public: 50 // default ctor 51 wxClientDCImpl( wxDC *owner ); 52 53 // Create a DC corresponding to the client area of the window 54 wxClientDCImpl( wxDC *owner, wxWindow *win ); 55 56 virtual ~wxClientDCImpl(); 57 58 virtual void DoGetSize(int *width, int *height) const; 59 60 protected: 61 void InitDC(); 62 63 DECLARE_CLASS(wxClientDCImpl) 64 wxDECLARE_NO_COPY_CLASS(wxClientDCImpl); 65 }; 66 67 class WXDLLIMPEXP_CORE wxPaintDCImpl : public wxClientDCImpl 68 { 69 public: 70 wxPaintDCImpl( wxDC *owner ); 71 72 // Create a DC corresponding for painting the window in OnPaint() 73 wxPaintDCImpl( wxDC *owner, wxWindow *win ); 74 75 virtual ~wxPaintDCImpl(); 76 77 // find the entry for this DC in the cache (keyed by the window) 78 static WXHDC FindDCInCache(wxWindow* win); 79 80 // This must be called by the code handling WM_PAINT to remove the DC 81 // cached for this window for the duration of this message processing. 82 static void EndPaint(wxWindow *win); 83 84 protected: 85 // Find the DC for this window in the cache, return NULL if not found. 86 static wxPaintDCInfo *FindInCache(wxWindow* win); 87 88 DECLARE_CLASS(wxPaintDCImpl) 89 wxDECLARE_NO_COPY_CLASS(wxPaintDCImpl); 90 }; 91 92 /* 93 * wxPaintDCEx 94 * This class is used when an application sends an HDC with the WM_PAINT 95 * message. It is used in HandlePaint and need not be used by an application. 96 */ 97 98 class WXDLLIMPEXP_CORE wxPaintDCEx : public wxPaintDC 99 { 100 public: 101 wxPaintDCEx(wxWindow *canvas, WXHDC dc); 102 103 DECLARE_CLASS(wxPaintDCEx) 104 wxDECLARE_NO_COPY_CLASS(wxPaintDCEx); 105 }; 106 107 #endif 108 // _WX_DCCLIENT_H_ 109